include(GNUInstallDirs)

# configuration

include_directories(
    ${CMAKE_CURRENT_SOURCE_DIR}
    ${CMAKE_CURRENT_BINARY_DIR})

set(HAVE_SPACEWARE ${SPACEWARE_FOUND})

if(NOT WIN32 OR APPLE)
    if(GTKMM_gtkmm-3.0_VERSION VERSION_LESS "3.24.0")
        set(HAVE_GTK_FILECHOOSERNATIVE 0)
    else()
        set(HAVE_GTK_FILECHOOSERNATIVE 1)
    endif()
endif()

configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
               ${CMAKE_CURRENT_BINARY_DIR}/config.h)

# solvespace dependencies
add_library(slvs_deps INTERFACE)
target_include_directories(slvs_deps INTERFACE SYSTEM
    ${OPENGL_INCLUDE_DIR}
    ${ZLIB_INCLUDE_DIR}
    ${PNG_PNG_INCLUDE_DIR}
    ${FREETYPE_INCLUDE_DIRS}
    ${CAIRO_INCLUDE_DIRS}
    ${MIMALLOC_INCLUDE_DIR}
    ${EIGEN3_INCLUDE_DIRS})
target_link_libraries(slvs_deps INTERFACE
    dxfrw
    ${ZLIB_LIBRARY}
    ${PNG_LIBRARY}
    ${FREETYPE_LIBRARY}
    ${CAIRO_LIBRARIES}
    mimalloc-static)

if(Backtrace_FOUND)
    target_include_directories(slvs_deps INTERFACE SYSTEM
        ${Backtrace_INCLUDE_DIRS})
    target_link_libraries(slvs_deps INTERFACE
        ${Backtrace_LIBRARY})
endif()

if(SPACEWARE_FOUND)
    target_include_directories(slvs_deps INTERFACE SYSTEM
        ${SPACEWARE_INCLUDE_DIR})
    target_link_libraries(slvs_deps INTERFACE
        ${SPACEWARE_LIBRARIES})
endif()

if(ENABLE_OPENMP)
    target_link_libraries(slvs_deps INTERFACE slvs_openmp)
endif()

target_compile_options(slvs_deps
    INTERFACE ${COVERAGE_FLAGS})

# platform utilities

if(APPLE)
    target_link_libraries(slvs_deps INTERFACE
        ${APPKIT_LIBRARY})
endif()

# libslvs
add_library(slvs SHARED
    solvespace.h
    platform/platform.h
    util.cpp
    entity.cpp
    expr.cpp
    constraint.cpp
    constrainteq.cpp
    system.cpp
    platform/platform.cpp
    lib.cpp)

target_compile_definitions(slvs
    PRIVATE -DLIBRARY)

target_include_directories(slvs
    PUBLIC
        ${CMAKE_SOURCE_DIR}/include
        ${EIGEN3_INCLUDE_DIRS})

target_link_libraries(slvs PRIVATE slvs_deps)

set_target_properties(slvs PROPERTIES
    PUBLIC_HEADER ${CMAKE_SOURCE_DIR}/include/slvs.h
    VERSION ${PROJECT_VERSION}
    SOVERSION 1)

if(NOT WIN32)
    install(TARGETS slvs
        LIBRARY       DESTINATION ${CMAKE_INSTALL_LIBDIR}
        ARCHIVE       DESTINATION ${CMAKE_INSTALL_LIBDIR}
        PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
endif()

set(every_platform_SOURCES
    platform/guiwin.cpp
    platform/guigtk.cpp
    platform/guimac.mm
    platform/guihtml.cpp)

# solvespace library

set(solvespace_core_gl_SOURCES
    solvespace.cpp)

add_library(solvespace-core STATIC
    dsc.h
    expr.h
    polygon.h
    sketch.h
    solvespace.h
    ui.h
    platform/platform.h
    render/render.h
    render/gl3shader.h
    srf/surface.h
    bsp.cpp
    clipboard.cpp
    confscreen.cpp
    constraint.cpp
    constrainteq.cpp
    describescreen.cpp
    draw.cpp
    drawconstraint.cpp
    drawentity.cpp
    entity.cpp
    export.cpp
    exportstep.cpp
    exportvector.cpp
    expr.cpp
    file.cpp
    generate.cpp
    graphicswin.cpp
    group.cpp
    groupmesh.cpp
    importdxf.cpp
    importidf.cpp
    importmesh.cpp
    mesh.cpp
    modify.cpp
    mouse.cpp
    polyline.cpp
    polygon.cpp
    resource.cpp
    request.cpp
    style.cpp
    system.cpp
    textscreens.cpp
    textwin.cpp
    toolbar.cpp
    ttf.cpp
    undoredo.cpp
    util.cpp
    view.cpp
    platform/platform.cpp
    platform/gui.cpp
    render/render.cpp
    render/render2d.cpp
    srf/boolean.cpp
    srf/curve.cpp
    srf/merge.cpp
    srf/ratpoly.cpp
    srf/raycast.cpp
    srf/shell.cpp
    srf/surface.cpp
    srf/surfinter.cpp
    srf/triangulate.cpp)

target_link_libraries(solvespace-core PUBLIC slvs_deps)

# solvespace translations

if(HAVE_GETTEXT)
    get_target_property(solvespace_core_SOURCES solvespace-core SOURCES)
    set(inputs
        ${solvespace_core_SOURCES}
        ${every_platform_SOURCES}
        ${solvespace_core_gl_SOURCES})

    set(templ_po   ${CMAKE_CURRENT_BINARY_DIR}/../res/messages.po)

    set(output_pot ${CMAKE_CURRENT_SOURCE_DIR}/../res/messages.pot)
    set(output_po  ${CMAKE_CURRENT_SOURCE_DIR}/../res/locales/en_US.po)
    file(GLOB locale_pos ${CMAKE_CURRENT_SOURCE_DIR}/../res/locales/*.po)

    string(REPLACE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR}
           gen_output_pot ${output_pot}.gen)
    string(REPLACE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR}
           gen_output_po ${output_po}.gen)
    foreach(locale_po ${locale_pos})
        string(REPLACE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR}
               gen_locale_po ${locale_po}.gen)
        list(APPEND gen_locale_pos ${gen_locale_po})
    endforeach()

    add_custom_command(
        OUTPUT  ${gen_output_pot}
        COMMAND ${XGETTEXT}
                --language=C++
                --keyword --keyword=_ --keyword=N_ --keyword=C_:2,1c --keyword=CN_:2,1c
                --force-po --width=100 --sort-by-file
                --package-name=SolveSpace
                --package-version=${PROJECT_VERSION}
                "--copyright-holder=the PACKAGE authors"
                --msgid-bugs-address=phkahler@gmail.com
                --from-code=utf-8 --output=${gen_output_pot} ${inputs}
        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${gen_output_pot} ${output_pot}
        DEPENDS ${inputs}
        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
        COMMENT "Extracting translations"
        VERBATIM)

    file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/../res/locales)

    # en_US is a bit special; we pre-fill the msgstrs from msgids, instead of (as would normally
    # happen) leaving them empty.
    add_custom_command(
        OUTPUT  ${gen_output_po}
        COMMAND ${MSGINIT}
                --locale=en_US --no-translator
                --output=${templ_po} --input=${gen_output_pot}
        COMMAND ${MSGMERGE}
                --force-po --no-fuzzy-matching
                --output=${gen_output_po} ${output_po} ${templ_po}
        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${gen_output_po} ${output_po}
        DEPENDS ${gen_output_pot}
        COMMENT "Updating en_US translations"
        VERBATIM)

    foreach(locale_po ${locale_pos})
        string(REPLACE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR}
               gen_locale_po ${locale_po}.gen)

        get_filename_component(locale_name ${locale_po} NAME_WE)
        if(locale_name STREQUAL "en_US")
            continue()
        endif()

        add_custom_command(
            OUTPUT  ${gen_locale_po}
            COMMAND ${MSGMERGE}
                    --no-fuzzy-matching
                    --output=${gen_locale_po} ${locale_po} ${gen_output_pot}
            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${gen_locale_po} ${locale_po}
            DEPENDS ${gen_output_pot}
            COMMENT "Updating ${locale_name} translations"
            VERBATIM)
    endforeach()

    add_custom_target(translate_solvespace
        DEPENDS ${gen_output_pot} ${gen_output_po} ${gen_locale_pos})
endif()

# solvespace graphical executable

if(ENABLE_GUI)
    add_executable(solvespace WIN32 MACOSX_BUNDLE
        ${solvespace_core_gl_SOURCES}
        platform/entrygui.cpp
        $<TARGET_PROPERTY:resources,EXTRA_SOURCES>)

    add_dependencies(solvespace
        resources)

    target_link_libraries(solvespace
        PRIVATE
        solvespace-core
        ${OPENGL_LIBRARIES})

    # OpenGL version
    if(OPENGL STREQUAL 3)
        target_sources(solvespace PRIVATE
            render/gl3shader.cpp
            render/rendergl3.cpp)
    elseif(OPENGL STREQUAL 1)
        target_sources(solvespace PRIVATE
            render/rendergl1.cpp)
    else()
        message(FATAL_ERROR "Unsupported OpenGL version ${OPENGL}")
    endif()

    # Platform-specific
    if(WIN32)
        target_sources(solvespace PRIVATE
            platform/guiwin.cpp)

        target_link_libraries(solvespace PRIVATE comctl32)
    elseif(APPLE)
        target_compile_options(solvespace PRIVATE -fobjc-arc)
        target_compile_definitions(solvespace PRIVATE GL_SILENCE_DEPRECATION)

        target_sources(solvespace PRIVATE
            platform/guimac.mm)
        set_target_properties(solvespace PROPERTIES
            OUTPUT_NAME SolveSpace
            XCODE_ATTRIBUTE_ENABLE_HARDENED_RUNTIME "YES"
            XCODE_ATTRIBUTE_PRODUCT_BUNDLE_IDENTIFIER "com.solvespace"
            RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
    elseif(EMSCRIPTEN)
        set(SHELL ${CMAKE_CURRENT_SOURCE_DIR}/platform/html/emshell.html)
        set(LINK_FLAGS
            --bind --shell-file ${SHELL}
            --no-heap-copy -s ALLOW_MEMORY_GROWTH=1 -s WASM=1 -s ASYNCIFY=1
            -s DYNCALLS=1 -s ASSERTIONS=1
            -s TOTAL_STACK=33554432 -s TOTAL_MEMORY=134217728)

        get_target_property(resource_names resources NAMES)
        foreach(resource ${resource_names})
            list(APPEND LINK_FLAGS --preload-file ${resource})
        endforeach()

        if(CMAKE_BUILD_TYPE STREQUAL Debug)
            list(APPEND LINK_FLAGS
                --emrun --emit-symbol-map
                -s DEMANGLE_SUPPORT=1
                -s SAFE_HEAP=1)
        endif()

        target_sources(solvespace PRIVATE
            platform/guihtml.cpp)

        string(REPLACE ";" " " LINK_FLAGS "${LINK_FLAGS}")
        set_target_properties(solvespace PROPERTIES
            LINK_FLAGS "${LINK_FLAGS}")
        set_source_files_properties(platform/guihtml.cpp PROPERTIES
            OBJECT_DEPENDS ${SHELL})

        add_custom_command(
            TARGET solvespace POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy_if_different
                    ${CMAKE_CURRENT_SOURCE_DIR}/platform/html/solvespaceui.css
                    ${EXECUTABLE_OUTPUT_PATH}/solvespaceui.css
            COMMENT "Copying UI stylesheet"
            VERBATIM)
        add_custom_command(
            TARGET solvespace POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy_if_different
                    ${CMAKE_CURRENT_SOURCE_DIR}/platform/html/solvespaceui.js
                    ${EXECUTABLE_OUTPUT_PATH}/solvespaceui.js
            COMMENT "Copying UI script solvespaceui.js"
            VERBATIM)
        add_custom_command(
            TARGET solvespace POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy_if_different
                    ${CMAKE_CURRENT_SOURCE_DIR}/platform/html/filemanagerui.js
                    ${EXECUTABLE_OUTPUT_PATH}/filemanagerui.js
            COMMENT "Copying UI script filemanagerui.sj"
            VERBATIM)
    else()
        target_sources(solvespace PRIVATE
            platform/guigtk.cpp)

        target_include_directories(solvespace PRIVATE SYSTEM
            ${GTKMM_INCLUDE_DIRS}
            ${JSONC_INCLUDE_DIRS}
            ${FONTCONFIG_INCLUDE_DIRS})
        target_link_directories(solvespace PRIVATE
            ${GTKMM_LIBRARY_DIRS}
            ${JSONC_LIBRARY_DIRS}
            ${FONTCONFIG_LIBRARY_DIRS})
        target_link_libraries(solvespace PRIVATE
            ${GTKMM_LIBRARIES}
            ${JSONC_LIBRARIES}
            ${FONTCONFIG_LIBRARIES})
    endif()

    if(MSVC)
        set_target_properties(solvespace PROPERTIES
            LINK_FLAGS "/MANIFEST:NO /SAFESEH:NO /INCREMENTAL:NO /OPT:REF")
    endif()
endif()

# solvespace headless library

add_library(solvespace-headless STATIC EXCLUDE_FROM_ALL
    ${solvespace_core_gl_SOURCES}
    platform/guinone.cpp
    render/rendercairo.cpp)

target_compile_definitions(solvespace-headless
    PRIVATE HEADLESS)

target_include_directories(solvespace-headless
    INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
    PUBLIC ${EIGEN3_INCLUDE_DIRS})

target_link_libraries(solvespace-headless
    PRIVATE
    solvespace-core)

# solvespace command-line executable

if(ENABLE_CLI)
    add_executable(solvespace-cli
        platform/entrycli.cpp
        $<TARGET_PROPERTY:resources,EXTRA_SOURCES>)

    target_link_libraries(solvespace-cli
        solvespace-core
        solvespace-headless)

    add_dependencies(solvespace-cli
        resources)

    if(MSVC)
        set_target_properties(solvespace-cli PROPERTIES
            LINK_FLAGS "/INCREMENTAL:NO /OPT:REF")
    endif()
endif()

# solvespace unix package

if(NOT (WIN32 OR APPLE OR EMSCRIPTEN))
    if(ENABLE_GUI)
        install(TARGETS solvespace
            RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
    endif()
    if(ENABLE_CLI)
        install(TARGETS solvespace-cli
            RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
    endif()
endif()

# solvespace macOS package

if(APPLE)
    set(LIBOMP_LIB_PATH ${OpenMP_CXX_INCLUDE_DIRS}/../lib/libomp.dylib)
    set(LIBOMP_LINK_PATH "@executable_path/../Resources/libomp.dylib")
    set(LIBOMP_LINK_PATH_UTILS "@executable_path/SolveSpace.app/Contents/Resources/libomp.dylib")
    if(ENABLE_GUI)
        add_custom_command(TARGET solvespace POST_BUILD
            COMMAND cp -r ${CMAKE_BINARY_DIR}/Resources $<TARGET_BUNDLE_CONTENT_DIR:solvespace>
        )
        if(ENABLE_OPENMP)
            execute_process(COMMAND install_name_tool -id ${LIBOMP_LINK_PATH} ${LIBOMP_LIB_PATH})
            message("FROM " ${${LIBOMP_LIB_PATH}} "TO" $<TARGET_BUNDLE_CONTENT_DIR:solvespace>/Resources/libomp.dylib)
            add_custom_command(TARGET solvespace POST_BUILD
                COMMAND ${CMAKE_COMMAND} -E copy ${LIBOMP_LIB_PATH} $<TARGET_BUNDLE_CONTENT_DIR:solvespace>/Resources/libomp.dylib
                COMMAND install_name_tool -change ${LIBOMP_LINK_PATH} ${LIBOMP_LINK_PATH_UTILS} $<TARGET_FILE:solvespace-debugtool>
            )
        endif()
    endif()
    if(ENABLE_TESTS AND ENABLE_OPENMP)
        add_custom_command(TARGET solvespace POST_BUILD
            COMMAND install_name_tool -change ${LIBOMP_LINK_PATH} ${LIBOMP_LINK_PATH_UTILS} $<TARGET_FILE:solvespace-testsuite>)
    endif()
    if(ENABLE_CLI)
        add_custom_command(TARGET solvespace POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:solvespace-cli> $<TARGET_FILE_DIR:solvespace>
            COMMENT "Bundling executable solvespace-cli"
            VERBATIM)
    endif()
endif()
